102 lines
2.0 KiB
C
102 lines
2.0 KiB
C
|
#include <errno.h>
|
||
|
|
#include <ioall.h>
|
||
|
|
#include <fcntl.h>
|
||
|
|
#include <sys/time.h>
|
||
|
|
#include <sys/stat.h>
|
||
|
|
#include <stdlib.h>
|
||
|
|
#include <unistd.h>
|
||
|
|
#include <stdio.h>
|
||
|
|
#include "filecopy.h"
|
||
|
|
|
||
|
|
char namebuf[MAX_PATH_LENGTH];
|
||
|
|
void notify_progress(int p1, int p2)
|
||
|
|
{
|
||
|
|
}
|
||
|
|
|
||
|
|
int global_status_fd;
|
||
|
|
void do_exit(int code)
|
||
|
|
{
|
||
|
|
int codebuf = code;
|
||
|
|
write(global_status_fd, &codebuf, sizeof codebuf);
|
||
|
|
exit(0);
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
void fix_times_and_perms(struct file_header *hdr, char *name)
|
||
|
|
{
|
||
|
|
struct timeval times[2] =
|
||
|
|
{ {hdr->atime, hdr->atime_nsec / 1000}, {hdr->mtime,
|
||
|
|
hdr->mtime_nsec / 1000}
|
||
|
|
};
|
||
|
|
if (chmod(name, hdr->mode & 07777))
|
||
|
|
do_exit(errno);
|
||
|
|
if (utimes(name, times))
|
||
|
|
do_exit(errno);
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
void process_one_file_reg(struct file_header *hdr, char *name)
|
||
|
|
{
|
||
|
|
char *ret;
|
||
|
|
int fdout =
|
||
|
|
open(name, O_WRONLY | O_CREAT | O_EXCL | O_NOFOLLOW, 0700);
|
||
|
|
if (fdout < 0)
|
||
|
|
do_exit(errno);
|
||
|
|
ret = copy_file(fdout, 0, hdr->filelen);
|
||
|
|
if (ret)
|
||
|
|
do_exit(errno);
|
||
|
|
close(fdout);
|
||
|
|
fix_times_and_perms(hdr, name);
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
void process_one_file_dir(struct file_header *hdr, char *name)
|
||
|
|
{
|
||
|
|
if (mkdir(name, 0700) && errno != EEXIST)
|
||
|
|
do_exit(errno);
|
||
|
|
fix_times_and_perms(hdr, name);
|
||
|
|
}
|
||
|
|
|
||
|
|
void process_one_file_link(struct file_header *hdr, char *name)
|
||
|
|
{
|
||
|
|
char content[MAX_PATH_LENGTH];
|
||
|
|
if (hdr->filelen > MAX_PATH_LENGTH - 1)
|
||
|
|
do_exit(ENAMETOOLONG);
|
||
|
|
if (!read_all(0, content, hdr->filelen))
|
||
|
|
do_exit(errno);
|
||
|
|
content[hdr->filelen] = 0;
|
||
|
|
if (symlink(content, name))
|
||
|
|
do_exit(errno);
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
void process_one_file(struct file_header *hdr)
|
||
|
|
{
|
||
|
|
if (hdr->namelen > MAX_PATH_LENGTH - 1)
|
||
|
|
do_exit(ENAMETOOLONG);
|
||
|
|
if (!read_all(0, namebuf, hdr->namelen))
|
||
|
|
do_exit(errno);
|
||
|
|
namebuf[hdr->namelen] = 0;
|
||
|
|
if (S_ISREG(hdr->mode))
|
||
|
|
process_one_file_reg(hdr, namebuf);
|
||
|
|
else if (S_ISLNK(hdr->mode))
|
||
|
|
process_one_file_link(hdr, namebuf);
|
||
|
|
else if (S_ISDIR(hdr->mode))
|
||
|
|
process_one_file_dir(hdr, namebuf);
|
||
|
|
else
|
||
|
|
do_exit(EINVAL);
|
||
|
|
}
|
||
|
|
|
||
|
|
void do_unpack(int fd)
|
||
|
|
{
|
||
|
|
global_status_fd = fd;
|
||
|
|
struct file_header hdr;
|
||
|
|
while (read_all(0, &hdr, sizeof hdr))
|
||
|
|
process_one_file(&hdr);
|
||
|
|
if (errno)
|
||
|
|
do_exit(errno);
|
||
|
|
else
|
||
|
|
do_exit(LEGAL_EOF);
|
||
|
|
}
|